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WO2005055197A3 - Noise suppressor for speech coding and speech recognition - Google Patents

Noise suppressor for speech coding and speech recognition Download PDF

Info

Publication number
WO2005055197A3
WO2005055197A3 PCT/US2004/038675 US2004038675W WO2005055197A3 WO 2005055197 A3 WO2005055197 A3 WO 2005055197A3 US 2004038675 W US2004038675 W US 2004038675W WO 2005055197 A3 WO2005055197 A3 WO 2005055197A3
Authority
WO
WIPO (PCT)
Prior art keywords
noise
signal
speech signal
calculating
speech
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2004/038675
Other languages
French (fr)
Other versions
WO2005055197A2 (en
Inventor
Sahar E Bou-Ghazale
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skyworks Solutions Inc
Original Assignee
Skyworks Solutions Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Skyworks Solutions Inc filed Critical Skyworks Solutions Inc
Priority to AT04811396T priority Critical patent/ATE541287T1/en
Priority to CNB2004800350048A priority patent/CN100573667C/en
Priority to EP04811396A priority patent/EP1706864B1/en
Priority to KR1020067011588A priority patent/KR100739905B1/en
Publication of WO2005055197A2 publication Critical patent/WO2005055197A2/en
Anticipated expiration legal-status Critical
Publication of WO2005055197A3 publication Critical patent/WO2005055197A3/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Noise Elimination (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

A noise suppressor for suppressing noise in a source speech signal, where a method utilized by the noise suppressor comprises calculating a signal-to-noise ratio in the source speech signal, calculating a background noise estimate for a current frame of the source speech signal based on said current frame and at least one previous frame and in accordance with the signal-to-noise ratio, wherein the calculating the signal-to-noise ratio is carried out independent from the background noise estimate for the current frame, and subtracting the background noise estimate from the source speech signal to produce a noise-reduced speech signal. The method may also comprise calculating an over-subtraction parameter based on the signal-to-noise ratio, calculating a noise-floor parameter based on the signal-to- noise ratio, wherein the subtracting uses the over-subtraction parameter and the noise-floor parameter to produce the noise-reduced speech signal.
PCT/US2004/038675 2003-11-28 2004-11-18 Noise suppressor for speech coding and speech recognition Ceased WO2005055197A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT04811396T ATE541287T1 (en) 2003-11-28 2004-11-18 COMPUTATIVELY EFFICIENT BACKGROUND NOISE REDUCER FOR VOICE CODING AND VOICE RECOGNITION
CNB2004800350048A CN100573667C (en) 2003-11-28 2004-11-18 Noise Suppressor for Speech Coding and Speech Recognition
EP04811396A EP1706864B1 (en) 2003-11-28 2004-11-18 Computationally efficient background noise suppressor for speech coding and speech recognition
KR1020067011588A KR100739905B1 (en) 2003-11-28 2004-11-18 Computationally efficient background noise suppressor for speech coding and speech recognition

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/724,430 2003-11-28
US10/724,430 US7133825B2 (en) 2003-11-28 2003-11-28 Computationally efficient background noise suppressor for speech coding and speech recognition

Publications (2)

Publication Number Publication Date
WO2005055197A2 WO2005055197A2 (en) 2005-06-16
WO2005055197A3 true WO2005055197A3 (en) 2007-08-02

Family

ID=34620061

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/038675 Ceased WO2005055197A2 (en) 2003-11-28 2004-11-18 Noise suppressor for speech coding and speech recognition

Country Status (6)

Country Link
US (1) US7133825B2 (en)
EP (1) EP1706864B1 (en)
KR (1) KR100739905B1 (en)
CN (1) CN100573667C (en)
AT (1) ATE541287T1 (en)
WO (1) WO2005055197A2 (en)

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US8175877B2 (en) * 2005-02-02 2012-05-08 At&T Intellectual Property Ii, L.P. Method and apparatus for predicting word accuracy in automatic speech recognition systems
US20060184363A1 (en) * 2005-02-17 2006-08-17 Mccree Alan Noise suppression
JP4765461B2 (en) * 2005-07-27 2011-09-07 日本電気株式会社 Noise suppression system, method and program
JP4863713B2 (en) * 2005-12-29 2012-01-25 富士通株式会社 Noise suppression device, noise suppression method, and computer program
US7844453B2 (en) * 2006-05-12 2010-11-30 Qnx Software Systems Co. Robust noise estimation
US9058819B2 (en) * 2006-11-24 2015-06-16 Blackberry Limited System and method for reducing uplink noise
US8326620B2 (en) * 2008-04-30 2012-12-04 Qnx Software Systems Limited Robust downlink speech and noise detector
US8335685B2 (en) 2006-12-22 2012-12-18 Qnx Software Systems Limited Ambient noise compensation system robust to high excitation noise
EP2137728B1 (en) * 2007-03-19 2016-03-09 Dolby Laboratories Licensing Corporation Noise variance estimation for speech enhancement
KR20080111290A (en) * 2007-06-18 2008-12-23 삼성전자주식회사 System and method for evaluating speech performance for remote speech recognition
US8606566B2 (en) * 2007-10-24 2013-12-10 Qnx Software Systems Limited Speech enhancement through partial speech reconstruction
US8015002B2 (en) * 2007-10-24 2011-09-06 Qnx Software Systems Co. Dynamic noise reduction using linear model fitting
US8326617B2 (en) 2007-10-24 2012-12-04 Qnx Software Systems Limited Speech enhancement with minimum gating
US8600740B2 (en) * 2008-01-28 2013-12-03 Qualcomm Incorporated Systems, methods and apparatus for context descriptor transmission
DE102008017550A1 (en) * 2008-04-07 2009-10-08 Siemens Medical Instruments Pte. Ltd. Multi-stage estimation method for noise reduction and hearing aid
US9575715B2 (en) * 2008-05-16 2017-02-21 Adobe Systems Incorporated Leveling audio signals
US8737641B2 (en) * 2008-11-04 2014-05-27 Mitsubishi Electric Corporation Noise suppressor
KR101581885B1 (en) * 2009-08-26 2016-01-04 삼성전자주식회사 Apparatus and Method for reducing noise in the complex spectrum
CN102714034B (en) * 2009-10-15 2014-06-04 华为技术有限公司 Signal processing method, device and system
CN101699831B (en) * 2009-10-23 2012-05-23 华为终端有限公司 Terminal call sending method, system and device
EP2767978B1 (en) * 2010-05-25 2017-03-15 Nec Corporation Noise suppression in a deteriorated audio signal
CN101930746B (en) * 2010-06-29 2012-05-02 上海大学 An Adaptive Noise Reduction Method for MP3 Compressed Domain Audio
JP5599353B2 (en) * 2011-03-30 2014-10-01 パナソニック株式会社 Transceiver
JP5823850B2 (en) * 2011-12-21 2015-11-25 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Communication communication system and magnetic resonance apparatus
JP2013148724A (en) * 2012-01-19 2013-08-01 Sony Corp Noise suppressing device, noise suppressing method, and program
JP6182895B2 (en) * 2012-05-01 2017-08-23 株式会社リコー Processing apparatus, processing method, program, and processing system
US9269368B2 (en) * 2013-03-15 2016-02-23 Broadcom Corporation Speaker-identification-assisted uplink speech processing systems and methods
JP6059130B2 (en) * 2013-12-05 2017-01-11 日本電信電話株式会社 Noise suppression method, apparatus and program thereof
CN106356070B (en) * 2016-08-29 2019-10-29 广州市百果园网络科技有限公司 A kind of acoustic signal processing method and device
US11164591B2 (en) * 2017-12-18 2021-11-02 Huawei Technologies Co., Ltd. Speech enhancement method and apparatus
CN112309419B (en) * 2020-10-30 2023-05-02 浙江蓝鸽科技有限公司 Noise reduction and output method and system for multipath audio

Citations (2)

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US5839101A (en) * 1995-12-12 1998-11-17 Nokia Mobile Phones Ltd. Noise suppressor and method for suppressing background noise in noisy speech, and a mobile station
US6324502B1 (en) * 1996-02-01 2001-11-27 Telefonaktiebolaget Lm Ericsson (Publ) Noisy speech autoregression parameter enhancement method and apparatus

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JP4261622B2 (en) 1997-01-23 2009-04-30 モトローラ・インコーポレイテッド Non-linear processing apparatus and method in communication system
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US6415253B1 (en) * 1998-02-20 2002-07-02 Meta-C Corporation Method and apparatus for enhancing noise-corrupted speech
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Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US5839101A (en) * 1995-12-12 1998-11-17 Nokia Mobile Phones Ltd. Noise suppressor and method for suppressing background noise in noisy speech, and a mobile station
US6324502B1 (en) * 1996-02-01 2001-11-27 Telefonaktiebolaget Lm Ericsson (Publ) Noisy speech autoregression parameter enhancement method and apparatus

Also Published As

Publication number Publication date
EP1706864A4 (en) 2008-01-23
WO2005055197A2 (en) 2005-06-16
US20050119882A1 (en) 2005-06-02
CN100573667C (en) 2009-12-23
CN101142623A (en) 2008-03-12
EP1706864A2 (en) 2006-10-04
ATE541287T1 (en) 2012-01-15
KR20060103525A (en) 2006-10-02
KR100739905B1 (en) 2007-07-16
EP1706864B1 (en) 2012-01-11
US7133825B2 (en) 2006-11-07

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